Strategy Game Types: RTS, Turn-Based, 4X, and Tactics Explained
Strategy games explained: RTS, turn-based, 4X, tactics, and grand strategy, with key games from Dune II and Civilization to StarCraft and Age of Empires.
The genre that best fits the phrase "thinking one move ahead" is the strategy game. Everything from millennia-old pastimes like janggi and Go, to StarCraft with hundreds of units moving at once, to the Civilization series that packs thousands of years of human civilization into a single match belongs to this broad category.
But within strategy games there are many subgenres with completely different characters. Real-time strategy (RTS), which demands fast hands; turn-based strategy, where you take turns and think deeply; 4X, where you grow an empire; and tactics games, where you command a small elite squad, are all "strategy," yet they're enjoyed in different ways. In this post, we focus on these differences to cover the definition of strategy games, their subgenres, landmark titles in their history, and their design principles.
Definition and Core Appeal: Winning With Your Head, Not Your Hands
English Wikipedia describes strategy video games as a genre that emphasizes strategic and tactical planning and decision-making over quick reflexes. They often involve indirectly commanding many units and managing limited resources. Players usually have a "god's-eye view" of the whole battlefield, and better planning, rather than luck, decides who wins.
The appeal of strategy games is as follows.
- The joy of planning: The results of deciding where to spend resources and what to research first show up dozens of minutes later.
- The joy of reading your opponent: You guess what your opponent is preparing and come up with countermeasures.
- The joy of growth: A small village or base grows into a vast empire and army.
- The joy of the comeback: Even from a disadvantage, you can turn the tables with terrain, unit matchups, and surprise attacks.
Strategy games also differ from puzzle games. Wikipedia distinguishes them this way: if puzzles are "planning in isolation," strategy games are planning premised on conflict with an opponent. They're also distinguished from action and adventure games in that both sides compete symmetrically with similar resources and options.
Subgenres
| Type | How it progresses | Core activities | Representative games |
|---|---|---|---|
| Real-time strategy (RTS) | Simultaneous, without pausing | Gathering resources, building bases, producing and commanding units | Dune II, StarCraft, Age of Empires |
| Turn-based strategy (TBS) | Players alternate turns | Deep calculation, choosing each move | Heroes of Might and Magic |
| 4X | Mostly turn-based, some real-time | Running an empire through exploring, expanding, exploiting, and exterminating | Civilization, Master of Orion, Stellaris |
| Tactics | Mostly turn-based | Positioning, cover, and matchups for a small squad | X-COM, Fire Emblem, Into the Breach |
| Grand strategy | Long play at the nation or empire scale | National-level diplomacy, economy, and war | Stellaris |
| Hybrid | Turn-based strategic map + real-time battles | Strategy and combat handled separately | The Total War series |
| Tower defense | Mostly real-time | Placing defenses along a path | Kingdom Rush, Bloons TD |
What Is 4X?
4X comes from four words: eXplore, eXpand, eXploit, and eXterminate. The term was first used by Alan Emrich in the game magazine Computer Gaming World in 1993, when he previewed Master of Orion. 4X games are larger in scale than other strategy games, have broader research tech trees, and offer ways to win other than war, such as diplomacy through alliances, trade, and voting, and science or culture victories.
What Is RTS?
The term real-time strategy (RTS) was coined by Westwood Studios' Brett Sperry while promoting Dune II. A typical RTS has four elements: resource gathering, base building, technology development, and indirect control of units, and its signature control is dragging a box with the mouse to select multiple units at once.
Landmark Games in History
| Year | Game | Developer | Notes |
|---|---|---|---|
| 1989 | Herzog Zwei | Technosoft (published by Sega) | Early real-time strategy that influenced Dune II |
| 1990 | Fire Emblem: Shadow Dragon and the Blade of Light | Intelligent Systems / Nintendo | Start of the turn-based tactical RPG series |
| 1991 | Sid Meier's Civilization | MicroProse | A 4X that runs thousands of years of civilization in turns |
| 1992 | Dune II | Westwood Studios | Established the basic template of the modern RTS |
| 1993 | Master of Orion | Simtex (published by MicroProse) | The space strategy game that gave rise to the term "4X" |
| 1994 | UFO: Enemy Unknown (X-COM) | Mythos Games / MicroProse | Combined base management with turn-based squad combat |
| 1995 | Heroes of Might and Magic | New World Computing | Turn-based fantasy strategy with heroes leading armies |
| 1997 | Age of Empires | Ensemble Studios (published by Microsoft) | Brought advancing through ages to the RTS |
| 1998 | StarCraft | Blizzard Entertainment | An RTS with three distinct races that led to pro leagues |
| 2000 | Shogun: Total War | Creative Assembly | Combined a turn-based strategic map with real-time battles |
| 2016 | Stellaris | Paradox Development Studio | Space strategy combining 4X and grand strategy |
| 2018 | Into the Breach | Subset Games | Small-scale turn-based tactics that shows enemy actions in advance |
The Birth and Golden Age of RTS
The roots of real-time strategy go back to the 1980s, but it was recognized as a genre starting with Dune II in 1992. Moving units with the mouse and gathering resources to build a base became the foundation of the RTS from then on. Warcraft (1994), Command & Conquer (1995), and Age of Empires (1997) followed, and Blizzard's StarCraft (1998) became an international phenomenon that is still played in pro leagues today.
The Lineage of Turn-Based and 4X
Turn-based strategy inherited the traditions of board games and wargames. Sid Meier's Civilization (1991) included city development, exploration, government, trade, research, and military, popularizing the depth of 4X. X-COM (1994) combined a strategic base-management screen with squad-level turn-based combat, and Fire Emblem (1990) laid the groundwork for the Japanese-style tactical RPG. Shogun: Total War (2000) put a turn-based strategic map and large-scale real-time battles into one game.
Genres That Branched Off From RTS
New genres were also born from user-made RTS maps. DotA, a Warcraft III map, evolved into the MOBA genre, in which you control only a single hero, and custom maps for StarCraft and Warcraft III grew the tower defense genre. Clash of Clans (2012) is cited as an example of RTS elements simplified for mobile.
Design Characteristics
- Asymmetry and balance: Like StarCraft's three races, different factions each have their own strengths and weaknesses but are tuned to have similar overall power.
- Counter systems: Like rock-paper-scissors, units are made strong against some units and weak against others, so the game doesn't come down to "one strongest unit."
- Tech trees: What you research first sets the direction of your strategy. In 4X, you have to know earlier technologies to research the next ones, while in RTS you often unlock higher-tier buildings and units by constructing buildings.
- Information and fog: The "fog of war" that hides unexplored areas creates value in scouting and makes you guess your opponent's intentions.
- Terrain: Hills, forests, rivers, and narrow chokepoints become ways to overcome numerical disadvantage. Real tactics like flanking and cutting supply lines are often recreated as well.
- Convenient controls: In RTS, hotkeys and control groups matter; in turn-based games, previews of movement range and attack results matter.
Who Should Play Them
- People who like reading moves, as in janggi, Go, or chess → turn-based strategy, tactics
- People who enjoy quick decisions, fast hands, and real-time matches → RTS
- People who want to grow a vast empire over a single game lasting hours or days → 4X, grand strategy
- People who want a clean strategy puzzle in a short session → small-scale tactics games like Into the Breach, tower defense
If you're new, a good approach is to start with a turn-based game without time pressure to learn the basic concepts (resources, counters, technology) and then move on to RTS.
Strategy Games Today
Strategy is still a genre that keeps getting new releases. Long-running series continue with games like Age of Empires IV (2021) and Civilization VII (2025), and grand strategy games like Stellaris keep getting updated with expansions for years. On mobile, tower defense and games that simplify RTS resource and building elements make up a large share.
Keke Studio's GRID DEFENSE: GRID WAR is a sci-fi tower defense built on this tradition, capturing the fun of placement strategy as you decide what to build where. Action Janggi, which brings janggi, a turn-based strategy game thousands of years old, into 3D, is also worth trying.
Though the formats differ, the joy strategy games offer is the same. The thrill of the moment when your plan comes together and turns the match around is what has kept this genre alive for decades.
